1611520152 has 128 divisors (see below), whose sum is σ = 4492972800. Its totient is φ = 477593600.

The previous prime is 1611520133. The next prime is 1611520153. The reversal of 1611520152 is 2510251161.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611520153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2513752 + ... + 2514392.

It is an arithmetic number, because the mean of its divisors is an integer number (35101350).

Almost surely, 2^1611520152 is an apocalyptic number.

1611520152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1611520152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246486400).

1611520152 is an abundant number, since it is smaller than the sum of its proper divisors (2881452648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1611520152 is a wasteful number, since it uses less digits than its factorization.

1611520152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1611520152 is about 40143.7436221387. The cubic root of 1611520152 is about 1172.4074790569.

The spelling of 1611520152 in words is "one billion, six hundred eleven million, five hundred twenty thousand, one hundred fifty-two".